EP 0741451 A3 19961227 - Surface acoustic wave device
Title (en)
Surface acoustic wave device
Title (de)
Akustische Oberflächenwellenanordnung
Title (fr)
Dispositif à ondes acoustiques de surface
Publication
Application
Priority
- EP 93113854 A 19930830
- JP 23453592 A 19920902
Abstract (en)
[origin: EP0585863A1] To obtain a surface acoustic wave device which can be produced with ease at a low cost and can be reduced in size without causing deterioration of characteristics, a surface acoustic wave device having input and output transducers (2, 3) arranged alternately on the surface of a substrate (1) for propagating a surface acoustic wave includes metal patterns (6) provided outside the transducers (2, 3) along the extension line of the propagation path of the surface acoustic wave and having at least one surface inclined at an angle THETA (5 DEG < THETA < 85 DEG or -85 DEG < THETA < -5 DEG ) with respect to the propagation direction of the surface acoustic wave. <IMAGE>
IPC 1-7
IPC 8 full level
H03H 9/02 (2006.01); H03H 9/145 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01)
CPC (source: EP US)
H03H 9/02771 (2013.01 - EP US); H03H 9/14547 (2013.01 - EP US); H03H 9/14567 (2013.01 - EP US); H03H 9/1457 (2013.01 - EP US); H03H 9/643 (2013.01 - EP US); H03H 9/6426 (2013.01 - EP US)
Citation (search report)
- [X] US 4206380 A 19800603 - HANMA KENTARO [JP], et al
- [X] FR 2350001 A1 19771125 - SIEMENS AG [DE]
- [A] FR 2452205 A1 19801017 - INST RADIOTEKH ELEKTRON [SU]
- [A] MACDONALD D B, DANIELS W D: "WIDE BANDWIDTH SAC DELAY LINES", PROCEEDINGS OF THE ULTRASONICS SYMPOSIUM. CHERRY HILL SEPTEMBER 25- 27 1978., NEW YORK, IEEE., US, vol. -, 25 September 1978 (1978-09-25) - 27 September 1978 (1978-09-27), US, pages 749 - 755, XP002017241
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0585863 A1 19940309; EP 0585863 B1 19981028; DE 69321799 D1 19981203; DE 69321799 T2 19990512; DE 69332837 D1 20030508; DE 69332837 T2 20040205; EP 0741451 A2 19961106; EP 0741451 A3 19961227; EP 0741451 B1 20030402; JP H0685597 A 19940325; US 5396199 A 19950307; US 5485051 A 19960116; US 5565825 A 19961015; US 5670921 A 19970923; US 5705964 A 19980106
DOCDB simple family (application)
EP 93113854 A 19930830; DE 69321799 T 19930830; DE 69332837 T 19930830; EP 96112618 A 19930830; JP 23453592 A 19920902; US 11247493 A 19930827; US 24199594 A 19940512; US 47069995 A 19950606; US 47070095 A 19950606; US 80103397 A 19970219